Well actually, it turns out the Harry Potter star has been secretly moonlighting as the Shape Of You singer this whole time. During an appearance on MTV's After Hours with Josh Horowitz, the 28-year-old actor finally came clean!

In the HIGHlarious sketch, Rupert tells fans he can't continue with the charade much to their wild disappointment!

Insiders even hinted that the original trio — Daniel Radcliffe, Emma Watson, and Rupert Grint — were already being coaxed to reprise their roles as adult Harry, Hermione, and Ron for the future installment.

Speaking on the Unofficial Universal Orlando Podcast, journalist and historian Jim Hill — who is apparently connected with the film departments at Disney and Universal Studios — said:

Earlier this year, James Corden opened up to Stephen Colbert about the origins of his popular Carpool Karaoke sketch and revealed it all started with George.

Back in 2011, Corden filmed a bit for the charity event Comic Relief for Red Nose Day as his Gavin and Stacey character. What makes the video so AH-Mazing today is Michael appears for a short bit at the beginning and end with James — and the two sang along to Wham! while driving!

It's basically the very FIRST Carpool Karaoke, years before Corden even got hired for CBS' The Late Late Show!

On Tuesday, it was revealed that the Harry Potter star lost his battle for a tax refund of about $1,300,000 (or £1,000,000). Oof!

As you may know, Grint made MILLIONS playing Daniel Radcliffe's sidekick in the hit franchise based off of J.K. Rowling's books. However, it appears the former child star's accountant attempted to shift eight months of the red head's income into the 2009-2010 tax year. Why?

Well, the financial expert was supposedly trying to cut Rupert's tax bill by 10%. While it's believed Grint moved his accounting date from July 31 to April 5 in order to have a 20-month period placed in a lower tax rate, the A-lister never admitted to doing it — so a judge ruled that she couldn't view his changed date as valid.

Unfortunately, Rupert isn't the only celeb to have struggled with taxes in the past. Be sure to ch-ch-check out the FULL list (below)!